Drift-wheel for piers



G. M. FBNLEY. Drift-Wheel for Piers.

Pat ents d1 May 18, I880.

INVENTOR: 7774f .T/77-T57?F WITNESSES ATTORNEYSr ursfais.FHOTO-LITIIOGRAFHER, msnmsmn. 6. c.

UNITED STATES PATENT OFFICE.

GEORGE M. FENLEY, OF MEDORA, INDIANA.

DRIFT-WHEEL FOR PIERS.

SPECIFICATION forming part of Letters Patent No. 227,747, dated May 18,1880.

Application filed January 28, 1880.

To all whom it may concern:

Be it known that I, GEORGE M. FENLEY, of Medora, in the county ofJackson and State of Indiana, have invented a new and ImprovedDrift-Wheel for Piers, Docks, Landing-Piles, 850., of which thefollowing is a specification.

' The object of my invention is 'to provide a new and improveddrift-wheel for preventing drifts, rafts, or logs from stowing againstbridges, piers, or docks.

The invention consists of a cylinder armored with spikes and verticallyjpivoted in front of a pier, dock, or similar structure, so that whenthe drifts or floating logs strike this wheel they rotate the same andslide along. In case the drift locks or binds around the Wheel, the samecan be rotated by means of a lever acting upon a wheel attached to theaxis of the drift-wheel, and the drift thus set in motion and carriedaway from the drift-wheel.

In the accompanying drawings, Figure 1 is a side elevation of myimproved"'drift-wheel. Fig. 2 is plan view of the driving-wheel andlever of the same. section on the line as m, Fig. 1.

A cylinder, A, made of metal, wood, or some other suitable material,either hollow or solid, .is provided with a roughened armor, I

such as spikes, B on its periphery, and with a central longitudinalshaft, 0. This cylinder is mounted vertically at the end of a pier.bridge, or similar structure, the lower end of the shaft resting in asocketand the upper end being held in some suitable manner, so as topermit the cylinder to rotate on its longitudinal shaft.

Fig. 3 is a horizontal crossis pivoted to the shaft 0. The cylinder Amay also be mounted in such a manner as to beinclined.

The operation is as follows: If floating logs, drifts, vessels, or raftsof any kind strike the cylinder A, they will catch on the spikes Bsufficiently to rotate the cylinder in either direction, and will thusbe guided off, and cannot strike the pier or bridge to which the saidcylinder is pivoted.

It may happen that large drifts are stowed up against the cylinder andprevent the same from rotating; and in such cases the cylinder.

is rotated by means of the lever F, the double pawl G being thrown toeither side of the lever F, and engaging with one of the teeth E E, asshown in full and dotted linesin Fig. 2. The cylinder may also bearranged to be rotated by some other suitable device.

Having thus described my invention, What I claim as new, and desire tosecure by Letters Patent, is-

I 1. A drift wheel made substantially as herein shown and described, andconsisting of a cylinder, A, provided with a roughened armor, and to bemounted in front of a pier or dock, as set forth.

2. In a drift-wheel, the combination of the armored cylinder A with thewheel D, substantially as herein shown and described, and for thepurpose set forth.

3. In a drift-wheel, the combination of the armored cylinder A with thelever F, substantially as herein shown and described, and'for

